Leyla Yildirim

Valorisation of almond shell waste in ultrasonic biomordanted dyeing: alternatives to metallic mordants

An agroindustrial waste, outer green shell of almond fruit has been valorised as a novel natural dye using chemical solvent-free extraction, small amount of metallic mordants, one-bath biomordanted dyeing, ultrasonic medium, auxiliary-free dyeing and washing. The main objective of this study is to evaluate biomordants vs. metallic mordants depending on heating system both in extraction and dyeing and to reveal alternatives to metallic mordants. Effects of conventional- and ultrasound-assisted systems on dyeing and fastness properties were investigated. Wool fabrics dyed using metallic mordants (alum, iron II sulphate, copper II sulphate and potassium dichromate) were compared with the samples dyed in conjunction with biomordants [powder of valex (acorn of Quercus ithaburensis ssp. macrolepis), pomegranate (Punica granatum L.) rind, rosemary (Rosmarinus officinalis) and thuja (Thuja orientalis) leaves] in terms of colour yield, colour coordinates and fastness properties. Heating system had significant effects on dyeing and fastness results. Power ultrasound did not present any advantage in colour yield increment while it presented different effects on fastness values depending on mordant and process type of which ultrasound was applied. Some biomordants could be replaced with metallic mordants depending on their types and heating system. They could produce completely different colour gamuts just like metallic mordants.

Non-apparel applications of denim

In this chapter, the possibilities for increasing denim market share through alternative non-apparel applications are elaborated. Further, the importance of design, and ecological approaches to denim product creation, are evaluated in light of rising demand for creativity as well as changing consumer trends and demand. Current non-apparel applications of denim are highlighted with industrial, academic and artistic studies. Future development possibilities for such applications, and expectations of consumers, are also discussed.

Sanat - Zanaat Buluşması ve Wiener Werkstatte Tekstilleri

Sanatin, amacinin ve temel islevinin ne olup olmadigi gibi bircok soru ve sorunlar,hemen hemen her donem tartisilmakla birlikte, bazi donemler arastirmaci veelestirmenleri cok daha fazla mesgul etmistir. 1800’lu yillarin sonu ile 1900’lu yillarinbasini kapsayan ve “Fin de Siecle” (Yuzyil Sonu) olarak bilinen surec, sosyal veekonomik calkantilarin yani sira, kimlik sorunlarinin da yasandigi ve avant-gardeyaklasimlarin ciktigi bir donem olarak, sanat tarihi acisindan ayricalikli bir yere sahiptir.Bu calkantili donemin olusumunda Endustri Devrimi ve onun yarattigi sosyo-ekonomikolaylarin payi buyuktur. Bu calismada, Wiener Werkstatte diye bilinen, mobilyadan,takiya, giysiden ev aksesuarina kadar cesitli urunlerde uretim yapan Viyana Atolyesi’nin,sanatsal bir baskaldiri olan Secession Hareketi’nden nasil dogup, gelisip,bagimsizlastigina ve tekstil tasarimina getirdigi yeniliklere deginilecektir